Surname พงษ์สมศักดิ์ (พงษ์สมศักดิ์ 
) , globally, is a very rare cognomen. The cognomen พงษ์สมศักดิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, พงษ์สมศักดิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พงษ์สมศักดิ์ | Thailand |